Evaluation of Native Femoral Neck Version and Final Stem Version Variability in Patients With Osteoarthritis Undergoing Robotically Implanted Total Hip Arthroplasty
| Autor: | Fabio Catani, Luigi Ciampalini, Patrizio Caldora, Andrea Marcovigi, Piergiuseppe Perazzini, G. Grandi |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Arthroplasty Replacement Hip Osteoarthritis Prosthesis Design Osteoarthritis Hip 03 medical and health sciences 0302 clinical medicine Robotic Surgical Procedures Medicine Humans Orthopedics and Sports Medicine In patient Femur Range of Motion Articular anteversion combined version robotics stem THA total hip arthroplasty Femoral neck Retrospective Studies Surgeons 030222 orthopedics business.industry Femur Neck Acetabulum Robotics medicine.disease medicine.anatomical_structure Orthopedics Multicenter study Acetabular component Orthopedic surgery Female Hip Prosthesis business Nuclear medicine Range of motion Tomography X-Ray Computed Total hip arthroplasty |
| Popis: | Combined anteversion in total hip arthroplasty influences both dislocation risk and range of motion. One of its components, stem version (SV), could be dictated by many factors, from native femoral anatomy to stem geometry and surgeon's choice. In the present multicenter study, robotic technology was used to assess the influence of native femoral version on final SV and combined anteversion using a straight, uncemented stem.Three hundred sixty-two patients undergoing total hip arthroplasty were enrolled from 3 different orthopedic centers from 2012 and 2016. All patients underwent computed tomography planning with measurement of femoral neck version (FNV) and intraoperative measurement of stem version (SV), acetabular component version (AV), and combined version (CV) with robotic instrumentation.Mean FNV was 5.0° ± 9.6°, and SV was 6.4° ± 9.7°. The average difference between FNV and SV was 1.6° ± 9.8°. A moderate correlation was found between FNV and SV (R = 0.48, P.001). SV was between 5° and 20° in 174 patients (48%). Mean CV was 28.2° ± 7.9°. A strong correlation was found between SV and CV (R = 0.89, P.001). A significant difference in SV was found between the 3 centers (P .001). CV was25° in 109 patients (30.1%). Relative risk of CV25° was 8.6 times greater with SV 5° (P.001).With the use of an uncemented, single-wedge, straight stem, SV is highly variable. Despite being moderately correlated with native FNV, SV can be partially influenced by the surgeon. A low SV could be hardly corrected, bringing high risk of low CV. |
| Databáze: | OpenAIRE |
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